So, I see that this is an old topic, but I'd like to bump it up.
At the 2011 Anime Crossroads, I was very disappointed in the lack of Super Smash Brothers at the convention. I didn't care if it was tournament play or free play, but I definitely wished that I could've played the game in some way. It would've been nice if the gaming room had had a Wii or two set up with Brawl and Melee, if even just to play for fun.
One of my favorite things to do at conventions is to meet and play with other Smashers who are good at the game (my hometown is a little lacking in that respect), so I was sad to see that Anime Crossroads did not offer any Smash at all.